Answer:
x = 12
Step-by-step explanation:
In order for these lines to be parallel:
5x = 4x + 12
x = 12
Hope this helps
Answer:
Y=-x+3
Step-by-step explanation:
First move the the x term to one side. Isolate the y term. Then because the coefficient is 4 in the y term divide the whole equation by 4. Then you get your answer.
Answer:
Option B.
Step-by-step explanation:
The given expression is

It can be written as
![[\because \sin (30^\circ)=\dfrac{1}{2}]](https://tex.z-dn.net/?f=%5B%5Cbecause%20%5Csin%20%2830%5E%5Ccirc%29%3D%5Cdfrac%7B1%7D%7B2%7D%5D)

We know that sin is positive in first and second quadrant.
For first quadrant,

For second quadrant,

So, the required angles are
.
Therefore, the correct option is B.